4 years ago

I need asap I will mark you brainlist please help me

Mathematics

2 answers:

erma4kov [3.2K]4 years ago

8 0

Answer:

1:94 2:-94

Step-by-step explanation:

first one you take 53--41 its 94 and then you take -41-53 and that gets you -94

Dvinal [7]4 years ago

5 0

Answer:

94 degrees Fahrenheit and 15 degrees Fahrenheit

Step-by-step explanation:

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inysia [295]

We are given coordinates of A, B, C and D :

A(2, 4), B(9, 8), C(-1, 2), and D(3, -5).

Now, we need to find the slopes of AB and CD.

Slope of AB is :

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(2,\:4\right),\:\left(x_2,\:y_2\right)=\left(9,\:8\right)$

$m=\frac{8-4}{9-2}$

$m=\frac{4}{7}$ .

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$m=\frac{-5-2}{3-\left(-1\right)}$

$m=-\frac{7}{4}$ .

<em>Slope of CD is negative reciprocal of slope of slope of AB. </em>

<h3>Therefore, lines AB are CD are perpendicular.</h3>

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Lana71 [14]

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